Process for manufacturing surgical needles

Details Process for manufacturing surgical needles Process for manufacturing surgical needles

1997-06-25

1998-07-07

Ip, Sikyin

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148599, 148600, 163 1, 163 5, 723542, 72368, C21D 600

Patent

active

057762686

ABSTRACT:
A process for progressively manufacturing cutting edge needles or wire members. Needle blanks or wire blanks are cut from a roll of wire and mounted to a carrier strip. The carrier strip and needles are moved through a succession of coining dies and at least one trimming die, wherein the first coining die is an open coining die and the one or more successive coining dies are closed coining dies. The needle blanks or wire members are optionally curved, heat treated and electrochemically treated resulting in cutting edge needles or wire members formed without a grinding step and without adversely affecting point ductility.

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patent: 4672734 (1987-06-01), Kawada et al.
patent: 4785868 (1988-11-01), Koenig, Jr.

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